Search results for "Coronary angioplasty"

showing 10 items of 14 documents

High-frequency rotational ablation following failed percutaneous transluminal coronary angioplasty.

1994

Percutaneous transluminal coronary angioplasty (PTCA) failed in 29 of 1,150 patients (2.5%) after successful passage of the guide wire. The reasons for failure were inability to pass the lesion with a balloon in 28 patients and inability to dilate the lesion in 1 patient. In these patients (15 stenoses and 14 chronic occlusions) rotational ablation was performed. We were able to pass the burr through the lesion in all of them, resulting in a reduction of diameter stenosis from 87 +/- 15 to 51 +/- 18%. Rotational ablation alone was initially successful (stenoses reduction > 20% and residual stenoses < 50%) in 15 of 29 (52%) patients. Additional PTCA was performed in 21 of 29 (72%) patients, …

Atherectomy CoronaryMalemedicine.medical_specialtyPercutaneous transluminal coronary angioplastyRotational ablationCoronary Artery DiseaseBalloonCoronary AngiographyLesionRecurrenceInternal medicinemedicineHumansMajor complicationTreatment FailureAngioplasty Balloon Coronarybusiness.industryMiddle AgedCoronary heart diseaseSurgeryDiameter stenosisCardiologyFemalemedicine.symptomCardiology and Cardiovascular MedicinebusinessCatheterization and cardiovascular diagnosis
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Imaging in the catheterization laboratory

1993

Recent work confirms that visual assessment of the effect of widely employed coronary interventions is highly inaccurate. Rapid and reliable on-line angiographic quantitation is a useful advance, but problems in the application of the technique are encountered in a substantial number of cases. New algorithms have been devised to provide a comprehensive assessment of the geometry and likely functional significance of lesions as well as an objective evaluation of lesion morphology, and recent work has provided the framework for the quantitation of diffuse disease. Studies with intravascular ultrasound confirm the inadequate sensitivity of angiography in demonstrating mild to moderate atheroma…

Atheromatous diseasemedicine.medical_specialtyPercutaneous transluminal coronary angioplastyEquipment SafetyCardiac allograftmedicine.diagnostic_testbusiness.industryLumen (anatomy)Coronary DiseaseAngioscopyCoronary AngiographyIntravascular ultrasoundAngiographyDiffuse diseasemedicineHumansFunctional significanceRadiologyAngioplasty Balloon CoronaryCardiology and Cardiovascular MedicinebusinessUltrasonography InterventionalForecastingCurrent Opinion in Cardiology
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Recanalization of Totally Occluded Coronary Vessels by Percutaneous Transluminal Coronary Angioplasty

1986

Since its introduction in 1977, percutaneous transluminal coronary angioplasty (PTCA) has become an effective approach for treatment of patients with single-vessel disease [1–3, 5]. Treatment of double- and multiple-vessel disease has also been attempted [5, 6]. In patients with angina pectoris total occlusion of coronary vessels is found, and PTCA has also been used in an attempt to restore coronary blood flow in such patients [8, 10]. Even main stem occlusions have been recanalized [11]. In patients with total occlusion of coronary vessels, collateral flow is sufficient to maintain cardiac function at rest but not during exercise [12–14]. Therefore, PTCA seems to be an ideal method for re…

Cardiac function curvePercutaneous transluminal coronary angioplastymedicine.medical_specialtybusiness.industryBlood flowmedicine.diseaseTotal occlusionAnginaCollateral flowInternal medicinemedicineCardiologyIn patientbusiness
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Family hystory, diabetes and extension of coronary atherosclerosis are strong predictors of adverse events after PTCA: a one year follow-up study

2005

BACKGROUND AND AIM: In this study we addressed some open questions in patients with coronary artery disease (CAD). First, we analysed which of the traditional risk factors was associated with the spreading of coronary stenosis and second, we aimed to identify if any variable was predictive of post-percutaneous transluminal coronary angioplasty (PTCA) clinical events. METHODS AND RESULTS: We collected a consecutive series of patients with CAD (n=301) and in the subgroup of patients undergoing PTCA (n=135) we performed a prospective one-year follow-up study recording cardiovascular morbidity and total mortality. According to the extension of coronary atherosclerosis, we found a significant re…

MaleAdverse eventmedicine.medical_specialtyOne year follow upEndocrinology Diabetes and Metabolismmedicine.medical_treatmentCoronary angiographyCoronary angioplastyMedicine (miscellaneous)Coronary Artery DiseaseBody Mass IndexDiabetes ComplicationsCoronary artery diseaseInternal medicineDiabetes mellitusAngioplastyDiabetes MellitusmedicineHumansObesityProspective Studiescardiovascular diseasesAngioplasty Balloon CoronaryFamily historyAdverse effectCoronary atherosclerosisAgedAnalysis of VarianceSex CharacteristicsUnivariate analysisNutrition and Dieteticsbusiness.industryPredictorsFollow-upCholesterol HDLMiddle AgedPrognosismedicine.diseaseLogistic ModelsTreatment OutcomeCardiologyFemaleCardiology and Cardiovascular Medicinebusiness
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Choice of CTO scores to predict procedural success in clinical practice. A comparison of 4 different CTO PCI scores in a comprehensive national regis…

2021

Background We aimed to compare the performance of the recent CASTLE score to J-CTO, CL and PROGRESS CTO scores in a comprehensive database of percutaneous coronary intervention of chronic total occlusion procedures. Methods Scores were calculated using raw data from 1,342 chronic total occlusion procedures included in REBECO Registry that includes learning and expert operators. Calibration, discrimination and reclassification were evaluated and compared. Results Mean score values were: CASTLE 1.60±1.10, J-CTO 2.15±1.24, PROGRESS 1.68±0.94 and CL 2.52±1.52 points. The overall percutaneous coronary intervention success rate was 77.8%. Calibration was good for CASTLE and CL, but not for J-CTO…

MaleCalibraciónCardiovascular ProceduresPhysiologymedicine.medical_treatmentMyocardial InfarctionSocial SciencesVasos coronariosCardiovascular MedicineSeverity of Illness IndexPercutaneous coronary intervention:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Calibration [Medical Subject Headings]Learning and MemoryMedical ConditionsMedicine and Health SciencesPsychologyRegistries:Persons::Persons::Age Groups::Adult::Aged [Medical Subject Headings]Coronary Artery Bypass GraftingMultidisciplinaryQ:Analytical Diagnostic and Therapeutic Techniques and Equipment::Surgical Procedures Operative::Cardiovascular Surgical Procedures::Vascular Surgical Procedures::Endovascular Procedures::Percutaneous Coronary Intervention [Medical Subject Headings]RIntervención coronaria percutáneaMiddle AgedPrognosisInterventional CardiologyClinical PracticeTreatment Outcome:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Health Surveys::Health Status Indicators::Patient Acuity::Severity of Illness Index [Medical Subject Headings]Cardiovascular DiseasesIntegrated discrimination improvementArea Under CurveCohortCalibrationMedicineFemaleResearch ArticleLearning Curvesmedicine.medical_specialtyCoronary StentingScienceCardiologyMEDLINE:Check Tags::Male [Medical Subject Headings]Surgical and Invasive Medical ProceduresCoronary arteryRisk AssessmentTotal occlusionCalcificationPercutaneous Coronary InterventionmedicineHumansLearningRegistrosAged:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis::Treatment Outcome [Medical Subject Headings]business.industryAngioplasty:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Assessment [Medical Subject Headings]Cognitive Psychology:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Area Under Curve [Medical Subject Headings]Biology and Life SciencesPercutaneous coronary intervention:Persons::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]Cardiovascular Disease Risk:Diseases::Cardiovascular Diseases::Heart Diseases::Myocardial Ischemia::Coronary Disease::Coronary Occlusion [Medical Subject Headings]Coronary Occlusion:Check Tags::Female [Medical Subject Headings]Stent ImplantationConventional PCIPhysical therapyCognitive Science:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis [Medical Subject Headings]National registry:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Registries [Medical Subject Headings]Physiological ProcessesbusinessCoronary AngioplastyNeuroscience
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Troponin I Assay for Identification of a Significant Coronary Stenosis in Patients with Suspected Acute Myocardial Infarction and Wide QRS Complex

2016

Background Common ECG criteria such as ST-segment changes are of limited value in patients with suspected acute myocardial infarction (AMI) and bundle branch block or wide QRS complex. A large proportion of these patients do not suffer from an AMI, whereas those with ST-elevation myocardial infarction (STEMI) equivalent AMI benefit from an aggressive treatment. Aim of the present study was to evaluate the diagnostic information of cardiac troponin I (cTnI) in hemodynamically stable patients with wide QRS complex and suspected AMI. Methods In 417 out of 1818 patients presenting consecutively between 01/2007 and 12/2008 in a prospective multicenter observational study with suspected AMI a pro…

MaleCardiovascular ProceduresMyocardial Infarctionlcsh:MedicineCoronary Artery Disease030204 cardiovascular system & hematologyPathology and Laboratory MedicineBiochemistryVascular MedicineCoronary artery diseaseElectrocardiographyPatient Admission0302 clinical medicineTroponin IMedicine and Health SciencesMedicine030212 general & internal medicineMyocardial infarctionlcsh:ScienceStenosisMultidisciplinarymedicine.diagnostic_testbiologyMiddle AgedTroponinBioassays and Physiological Analysiscardiovascular systemCardiologyFemaleAlgorithmsResearch Articlemedicine.medical_specialtyCardiologySurgical and Invasive Medical ProceduresResearch and Analysis MethodsSensitivity and Specificity03 medical and health sciencesSigns and SymptomsDiagnostic MedicineInternal medicineHumansddc:610cardiovascular diseasesAgedCoronary RevascularizationBundle branch blockReceiver operating characteristicbusiness.industryRevascularizationElectrophysiological TechniquesAngioplastyTroponin Ilcsh:RCoronary StenosisBiology and Life SciencesProteinsmedicine.diseaseTroponinCytoskeletal Proteinsbiology.proteinMyocardial infarction complicationslcsh:QCardiac ElectrophysiologybusinessCoronary AngioplastyElectrocardiographyBiomarkersPLOS ONE
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Sicilian DES Registry: prospective in-hospital and 9-month clinical and angiographic follow-up in selected high restenosis risk patients.

2008

OBJECTIVE: This is a multicentre, open label, prospective non-randomized registry, with 9-month angiographic follow-up, conducted to evaluate the safety and effectiveness of drug-eluting stents (DES) when used in high restenosis risk patients from the real world. METHODS: From June 2004 to February 2005, a total of 1622 consecutive patients were enrolled to the Sicilian DES Registry, according to specific inclusion criteria. Both paclitaxel-eluting and sirolimus-eluting stents were used. The analysis was performed on 1472 patients because 150 patients were excluded from the study. The primary endpoint was to evaluate the rate of major adverse cardiac events (MACE) within 9 months after DES …

Malemedicine.medical_specialtyPaclitaxelCoronary angioplastyRegistry.Target vessel revascularizationCoronary DiseaseCoronary AngiographyCoronary artery diseaseCoronary RestenosisRestenosisClinical endpointMedicineHumansCumulative incidencecardiovascular diseasesMyocardial infarctionDrug eluting stentRegistriesAngioplasty Balloon CoronarySicilyAgedSirolimusEjection fractionbusiness.industryIncidence (epidemiology)Drug-Eluting StentsGeneral MedicineMiddle Agedmedicine.diseaseSurgeryFemaleCardiology and Cardiovascular MedicinebusinessMaceDiabetic AngiopathiesImmunosuppressive AgentsJournal of cardiovascular medicine (Hagerstown, Md.)
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Analysis of risk factors for restenosis after PTCA

1990

To identify risk factors for restenosis, we evaluated data in 473 patients with single-vessel percutaneous transluminal coronary angioplasty (PTCA) and control angiography after 6 months. Restenosis, defined as (1) loss greater than 50% of the initial gain, and (2) stenosis greater than 50% was found in 138 patients (29.2%). Univariate analysis revealed eight factors related to restenosis: (1) duration of symptoms less than 1 month (P = 0.005), (2) unstable angina (P = 0.004), (3) high-grade stenosis before PTCA (P = 0.014), (4) large residual stenosis after PTCA (P = 0.001), (5) insufficient improvement of stenosis (P = 0.042), (6) prolonged single inflation time (P = 0.017), (7) prolonged…

Malemedicine.medical_specialtyPercutaneous transluminal coronary angioplastyCoronary DiseaseCoronary AngiographyRestenosisRecurrenceRisk FactorsInternal medicinemedicineHumansAngina Unstablecardiovascular diseasesAngioplasty Balloon CoronaryAgedAnalysis of VarianceUnivariate analysismedicine.diagnostic_testbusiness.industryUnstable anginaResidual stenosisMiddle Agedmedicine.diseaseCoronary VesselsStenosisAngiographyCardiologyEvaluated dataCardiology and Cardiovascular MedicinebusinessCatheterization and Cardiovascular Diagnosis
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Influence of vessel dilatation on restenosis after successful percutaneous transluminal coronary angioplasty.

1996

The aim of this study was to evaluate the influence of vessel dilation on restenosis after successful percutaneous transluminal coronary angioplasty (PTCA) on the basis of quantitative angiographic analysis. To have the best comparison possible, we restrospectively studied a homogenous series of patients from the early 1980s treated according to a standardized PTCA procedure. The study group consisted of 86 patients with stable angina pectoris and single-vessel disease, all of whom underwent successful PTCA for a short concentric lesion in proximal vessel parts. The overall restenosis rate was 27%. Angiographically measured balloon size remained below specifications. The size of the inflate…

Malemedicine.medical_specialtyPercutaneous transluminal coronary angioplastyLumen (anatomy)Coronary DiseaseBalloonLesionRestenosisRecurrenceInternal medicinemedicineHumansIn patientAngioplasty Balloon CoronaryAgedbusiness.industryMiddle Agedmedicine.diseaseVessel diameterTreatment OutcomeCardiologyFemalemedicine.symptomCardiology and Cardiovascular MedicineComplicationbusinessAmerican heart journal
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Combination of high bolus dose of tirofiban with half dose thrombolytics for the treatment of subacute stent thrombosis

2005

Acute stent thrombosis is rare and it is usually related to complications during the procedure. Subacute thrombosis is far more common and is associated with a high incidence of acute myocardial infarction and death. Restoration of flow by thrombolysis, emergency bypass surgery or emergency percutaneous transluminal coronary angioplasty (PTCA) has had only limited success with respect to myocardial salvage. We report the case of a patient who suffered from recurrent subacute stent thrombosis, in whom administration of tirofiban at high-dose bolus in association with a half dose of recombinant tissue plasminogen activator succeeded in restoring normal myocardial flow and stable clinical cond…

Malemedicine.medical_specialtyPercutaneous transluminal coronary angioplastymedicine.medical_treatmentMyocardial InfarctionThrombolysiCoronary AngiographyRisk AssessmentBolus (medicine)Fibrinolytic AgentsCoronary CirculationAcute thrombosiInternal medicineStentmedicineHumanscardiovascular diseasesStent thrombosisMyocardial infarctionAngioplasty Balloon CoronaryVascular PatencyAgedDose-Response Relationship Drugbusiness.industryCoronary ThrombosisGeneral MedicineTirofibanThrombolysismedicine.diseaseThrombosisSurgeryTirofibanBypass surgeryAcute DiseaseCardiologyTyrosineDrug Therapy CombinationStentsCardiology and Cardiovascular MedicinebusinessFollow-Up Studiesmedicine.drugActa Cardiologica
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